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288 WinView/32 Manual Version 2.4.M
Interactive Camera Operation dialog box
(MicroMAX or ST-133)
If the controller is a MicroMAX or ST-133, clicking on
Video Focus
from the
Acquisition menu will open the Interactive Camera Operation dialog box. This dialog
box allows focusing to be quickly accomplished in “real time” by making the
adjustments while observing the image on a video monitor connected to the controller’s
video output as described in the MicroMAX or ST-133 instruction manual. Note that
data collection doesn’t take place and the image will not appear at the computer monitor
as long as the interactive dialog box is open.
Parameters
Exposure Time:
The Exposure Time is the amount of time the shutter will open to
collect data. For example, setting Exposure Time to 4 will set the exposure to 4
seconds. If no shutter is present, the Exposure Time will be the time between
readouts. There is no difference between setting the Exposure Time from this
dialog box and setting it from the Main tab page of the Experiment Setup
window.
RS170 Intensity Scaling:
Together with the Offset, the Scaling determines how the
image data is mapped to the 256 gray-scale video levels of the RS170 (EIA) or
CCIR video monitor. Its effect is only visible when active data acquisition is in
progress. There are seven scaling selections, ranging from “0 to 64” (slider to
left) to “0 to 4096” (slider to right). With a setting of “0 to 4096”, the entire A/D
output range is mapped to video. Lower settings may result in a more pleasing
(brighter) image. However, it is a good idea to begin with the “0 to 4096” setting
so that no information will be overlooked and then readjust afterwards for the
best image. The mapping of the A/D output to gray-scale as a function of the
selected gain is listed in Table 1.
Figure 250.
Interactive
Camera
Operation
dialog box
(MicroMAX or
ST-133).